Concrete construction.



Patented Sept. 3, 419123 2 SHEETS-SHBETL C. W, BBVERSTOCK. CONBBTE CONSTRUCTION. APPLIGATIVONKFILBD SEPT. 7, 1919.

1,037,416. Patented sept. 3,1912.

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CHARLES W. BEVRSTOCK, 0F LOS ANGELES, CALIFORNIA.

CONCRETE CONSTRUCTION.

To all whom t may concern.'

Be `it known that I, CHARLES W. BEVER- s'rocii, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of Califomia, have invented a certain new and useful Concrete Construction, of which the followingl is a specification.

This invention relates to a building construction and has particular reference to a lmeans for connecting,previously prepared and cast columns, girdei's and beams, the objects of this invent-ion being to dispense with molds in forming the beams, girders and columns at the place -of erection of a concrete building, to aw oid the delay necessarily consequent on the setting of a grout and reduce the cost by making unnecessary the use of a great amount of lumber. To this end the columns, girders and beams are previously prepared at some convenient place and then transport-ed to their place of erection, the general form of the elements of construction being shown in the accompanying drawings in which,

Iiigure 1 is a plan view showing a column and a' beam, each provided with reinforcements and having plat-es extending therefrom, which plates are then intel-locked, the intervening space between the columns and bea-n1 end then being filledin with grout.

Fig. 2 is a fragmentary sectional side elevation of the same. Fig. 3 is a top plan view of a modified form. Fig. -1 is a fragmentary sectional side elevation of the same. Fig. 5 is a fragmentary plan view of another modification showing amain beam provided with a recess and a shoulder, a joist resting on the shoulder and a plato for connecting the joist witlithe main beam. Fig. 6 is a lfragmentary sectional side elevation of the main beam. Fig. 7 is a fraginentary sectional side elevation of the beam and joist. F ig. 8 is a top `plan view of a column and a fragmentary plan of a beam showing plates andA rods rigidly secured to thel reinforcing angle irons of the concrete column, and the plates bolted together. Fig. 9 1s a fragmentary sectional side elevation of the saine showing in addition to the elements aforo recit-ed in connection with Fig. the method of securing a beam to two adjoining columns. Fig. 1t) is a fragmentary plan view of a modified form of joining a main beam with ay juist. Fig. 1l is a fragmentary Specification of Letters Patent.

i Application filed September 7, 1910.

ratenasept. 3,1912. Serial No. 580,933.

elevation of the same. Fig. 12 is a/segregated View, showing in fragmentar/yelevation two adjoining columns and a 'girdeig each having the reinforcing rods projecting beyond the sides and ends t-hereof respectively. Fig. 13 is a sectional plan showing a modified form of joining together two columns, and Fig. 14 is a fragmentary side elevation of the same.

Specifically referring to the drawings and particularly to Figs. 1 and 2 thereof, 1 designates a column composed of cement and reinforcing elements, in this instance comprising a wire strand 2 spirali wound about vertical reinforcing rods At a convenient place in the column, preferably at that point Where thel jointure with a girder or beam is to be efi'ected, a plurality of sets of bars are embedded in the concrete, these sets severally consisting .of two angle irons 4. Between the angle irons of each` set approximately centrally of the length thereof is inserted a plate 5 which is arranged to project beyond the side of the column, and the unit t-hus obtained is fastened together by bolt-s G, the whole arrangement being constructed and laid in place previous to the formation of the column.

On the rear of each set of bars is fastened by means of bolts, an angle iron 7 the angle. irons being disposed transversely of said bars in order to form a substantial bearing. The beam 8 is prepared in. like manner as the column with the exception however that thev reinforcing rods 9 are fastened to the projecting plate 1G in substantially the manner shown in Figs. l and 2. y The said llate I0 is arranged to be bolted to the aforementioned plate 5 and is provided with angle irons l1 in order to give additional purchase on the concrete and insure rigidity of the metal with the cementitious stone. After bolting or pinning the plate 10 of the beam to the plate '5 of the column, the space intervening is grouted up, so that the beam and column become practically a reinforced monolith.

The modification illustrated by Figs. 3 and 4l: embodies a structure adapted principally. for end columns. The supporting means in thecolunm for the-beams comprises a verticall plate 11, to which are fastened by means of nuts or in any other manner, two horizontal members 12, extend- ,lio

ing beyondthe side of the column and having in the ends thereof eyes 13. The beam 2 is reinforced with three bars, le, let and l5 extending longitudinally of the same, the har l5 lying between the bars 'le and la and havingl its end perforated and bent upward and projecting beyondl the end of the beam. Ilie ends. of the bars 14 and lll are also provided with perforations and project beyond the end of the beam, all ofthe bars le, llland l5 forming the reinforcement, being then bolted to the members l2 projecting from the column. To offset the shearing strain on the members 12, angle plates 16 are embedded in the concrete and disposed directly beneath' the same near the point of connection with the reinforcing bars of the adjacent beam. A like provision is made in the beam as seen at l?. As' 'in the `former instance, the space between the column and the beam is grouted up after the connections havebeen made. In some instances, especially where the column is to support heavy girders, the column is pro vided with a skew 18 .on which the concrete beam is adapted to rest, thereby additionlally strengthening the support and in a measure removing the strain from the steel connections.

v Figs. 5, 6 and show the invention einbo'died in a iiooi-`construction, the main beam A. being provided on the top with a recess 19 and a plurality of stud bolts 9.0 which are embedded in the concrete beam and project in the recess, but below the level of the beam. The side of the column is likewise provided with a recess 20 onwhich is Varranged to rest the end of the joist B, from which the flattened and .perforated ends 2l in a cementitious column and in the corners thereof. To two of these reinforcing bars are bolted angle plates Q11, which together with a steel plate Q5 are fastened by means of bolts. Nhere one column is superimposed on another, as scen in Fig. 9, thc plates 25 are provided on the upper and lower ends, respectively, of each column, and project from the sides thereof. The concrete girder C is provided with a steel plate Q6 which is arranged to be bolted to the two projecting plates 25 of the columns. The ends of the longitudinally extending .reinforcing rods or bars 27, which are e1nbedded in the concrete, aresecured to the said plate 26 as shown, thereby insuring the rigidity of the plate Q6 in the concrete,

and increasing the resisting power of verti- *Cal strains on the girder.

Figs. l0 and ll show the saine general forni as l and 2, the application being principally to a beam and Stringer.

Fig. l2 illustrates the manner in which a girder fastened to two columns, one superimposed on the other. The reinforcing rods of the columns E and F, and of the girder Gr, project beyond the sides and ends thereof, respectively. lVlien erected to position the ends are bolted and the interstice between the girder end and the column side grouted in. The column E is provided with a plurality of sockets :29and a countersunk portion 30, in which latter a steel plate 3l. carried by the column F is arranged to rest, while' the projecting reinforcing rods 32 in the said column F engage in the sockets 29 of the supporting column E.

Another method of fastening together two columns, one superimposed on the other, is illustrated by Figs. 13 and 14. Two oppo site sides of the columns are countersunk as seen at 33, for the accommodation of elongated steel, perforated plates 3ft. Embedded in the concrete columns are a plurality of bolts 35, the ends of which project in and till up the countersunk portion. The said free ends of the bolts are arranged to extend through the perforations of the plates 34, and ai'e'then upset, or the countersunk por tion housing the plate is illed in with grou-t. To measurably offset the crushing strain of the columns disposed end to end, steel plates 36 are interposed.

In all of the construction herein described and shown, it will be seen that the necessary elements, such as girders, columns, stringers, beams and the like, may be previously made up and then transported to the place of erection, in the same manner asl steel beams and girders are prepared at the structural snops previous to uniting in the ercction of a structure. Boltingand grouting then complete the skeleton forms of the building.

What I claim is: Y

1. A building construction consisting of reinforced concrete columns and beams, said columnshaving embedded therein and free of the reinforcement, angle ste-els severally provided with transversely disposed steel bearing members embedded in said columns and plates secured to said embedded angle steels and projecting beyond the sides of the said columns, and said beams being provided with steel plates to which are secured the reinforcements of the beams, said plates projecting beyond the ends of said beams, and having horizontally disposed steel bearing members, and means to connect the projecting plates of the columnsI vand beams.

2.A A building construction ,consisting of preformed concrete columns and beams, said columns being reinforced by a plurality of angle irons disposed near the outside of thecolumns and lhaving riveted thereto vertical L-shaped steel members, between which is riveted a steel plate slightly projecting beyond the sides of the columns, and said beams being reinforced by metallic rods which converge at the terminus of said beams, and having embedded in the ends thereof a plate which projects for asmall distance beyond the ends thereof, said metallic reinforcing members being anchored in said plate, and the projecting plates of both said columns and beams being riveted together and grouted in.

A building construction consisting of superimposed columns and beams, said columns having vertical reinforcing angle irons, vertical L-shaped Steel members embedded in said columns and riveted to two of said reinforcing angle irons andextending to near the center of one side of said `columns whereby to leave a space betweensaidV beams having extensions at the termini.

thereof of greater height than thesaid projecting plates of the said columns, plates embedded in said extensions and projecting beyond the ends of said extensions, and being of a vheight equal to the height to both projecting plates of said superimposed columns, said beams having horizontal reinforcing members converging toward the terminus of said beams and being fastened to'said plates in the ends'thereof, the plates of both of said columns and beams being riveted together and grou'ted in, substantially as described.

In testimony whereof I affix my signature in the presence of tWo Witnesses. j

. CHARLES W. BEVERSTOC-K. Witnesses F. J MCCLARY,

MELVIN H. WHEELER. 

